Twin triple chambered gas distribution system for melt blown mic

Details Twin triple chambered gas distribution system for melt blown mic Twin triple chambered gas distribution system for melt blown mic

1974-04-24

1976-07-20

Love, John J.

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

239422, 2395533, B29D 720

Patent

active

039704173

ABSTRACT:
Forming system for generating from heated, pressurized gas a pair of flattened, angularly colliding gas streams, each stream being adapted to be on a different opposed side of a die head producing a plurality of generally aligned, spaced, hot melt strands of polymeric material or the like. The system employs a pair of sequential plenum chambers on each such opposed side with a distribution conduit optionally being in the first plenum chamber of each such pair. Heated, pressurized gas enters into each such first plenum chamber, and then passes into the associated second such plenum chamber of each such respective plenum chamber pair through orifices so sized that a pressure drop occurs in each such second plenum chamber. Gas escapes through a nozzle portion associated with each second plenum chamber to produce the desired colliding gas streams. Each such stream is substantially uniform and is identical to the other in dimensions as well as other physical characteristics.

REFERENCES:
patent: 3379811 (1968-04-01), Hartmann et al.
patent: 3531053 (1970-09-01), Miller et al.
patent: 3715183 (1973-02-01), Manifold
patent: 3744724 (1973-07-01), Caille
patent: 3825379 (1974-07-01), Lohkamp et al.

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